Home / 678,281.10-936,124.74-406,360.32

Finding the Fourth Proportional to 678,281.10, 936,124.74 and 406,360.32

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Solution

The fourth proportional to 678,281.10, 936,124.74 and 406,360.32 is: 560,835.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,281.10 : 936,124.74 = 406,360.32 : x
  2. Step 2: Convert to fraction form
    678,281.10/936,124.74 = 406,360.32/x
  3. Step 3: Cross multiply
    678,281.10x = 936,124.74 × 406,360.32
  4. Step 4: Simplify right side
    678,281.10x = 380,403,948,906.32
  5. Step 5: Solve for x
    x = 380,403,948,906.32/678,281.10
  6. Step 6: Final answer
    x = 560,835.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.